Home / 15,102,082.52-20,839,891.68-8,905,708.04

Finding the Fourth Proportional to 15,102,082.52, 20,839,891.68 and 8,905,708.04

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Solution

The fourth proportional to 15,102,082.52, 20,839,891.68 and 8,905,708.04 is: 12,289,297.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,102,082.52 : 20,839,891.68 = 8,905,708.04 : x
  2. Step 2: Convert to fraction form
    15,102,082.52/20,839,891.68 = 8,905,708.04/x
  3. Step 3: Cross multiply
    15,102,082.52x = 20,839,891.68 × 8,905,708.04
  4. Step 4: Simplify right side
    15,102,082.52x = 185,593,990,887,305.09
  5. Step 5: Solve for x
    x = 185,593,990,887,305.09/15,102,082.52
  6. Step 6: Final answer
    x = 12,289,297.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.